What are the most important topics for CBSE class 12 physics and Chemistry practical exam viva?
For physics I can't say anything but for Chemistry I am sure…Since today was my Chemistry practical….The Lady teacher for taking viva came around 11 am,There were two batches in my class each Having 20 students.I was in batch 1,We were given 3 experiments To write on answer sheet given by School Teachers…Then At 11:20 am,The lady teacher Called batch 1…She was Calling 2 students together & was asking them some Questions…my turn came…Then…Teacher: Which topic you have Prepared properly from your 16 chapters of chemistry ?Me: Solid state.Teacher: Explain F centre,Value of z for fcc & some more 1 marks Question…I answered All except a last question…Then Teacher: Tell me The name of ch-8 of your ncert?Me: I was shocked from this Question..& answered D & f block…Then the teacher said “well done”…& gave me alpha(30/30).My school teachers were bringing some fruits,pepsi,samosa etc. Continuously for that lady teacher.Note::- Don't think about imp. Questions…Just prepare any one chapter & It is not necessary that your teacher too ask Ncert questions. may be she asks you about your Experiments
Please someone help please science questions I have a few done but really need help !!D;?
Question 1 A scientific study of matter and how materials interact with each other at the atomic level describes which field of physical science?Answer Physics Chemistry Astronomy 3 points Question 2 There is no connection between the study of chemistry and physics.Answer True False 2 points Question 3 Science is the human endeavor to understand the natural world. Answer True False 2 points Question 4 How should a scientist react if they discover new information that challenges old ideas?Answer The scientist should reject the new information as false e scientist should conduct further research and revise old ideas when necessary The scientist should erase all evidence of the new information 3 points Question 5 Which of the following describes a tradeoff associated with a scientific discovery that eliminates the need for assembly line workers in the production of automobiles? Answer Efficient production of cars Cheap cars Job loss 3 points Question 6 Scientific endeavor never has negative effects on society.Answer True False 2 points Question 7 Which of the following scientists discovered radioactivity?Answer J. J. Thomson Isaac Newton Marie Curie 3 points Question 8 Which of the following scientists proposed that the Sun, not the Earth, is the center of the solar system? Answer Nicolaus Copernicus Isaac Newton Nikola Tesla 3 points Question 9 Scientific endeavor is often driven by both curiosity and societal need. Answer True False 2 points Question 10 Data is the information used to: Answer ask a question prove or disprove a hypothesis develop a hypothesis 3 points Question 11 The statement, "If a rose bush receives 3 grams of fertilizer a day, then it will produce more roses." is an example of a hypothesis. Answer True False 2 points
How to make physics interesting ? it is the most boring subject in the world?
No way that's the most interesting subject in the world!! You get to figure out the most commonly asked question ever....WHY?
What is chemistry betweenen two people really?
You just click with that person. It's kind of hard for me to describe. It could be that you have a lot in common, or maybe you are complete opposites....... You just know when you click with someone or not.
Why is Organic Chemistry HARD?
I think Org. Chem hardness depends on the person. For me, I thought Org. Chem was easy as pie, unlike gen chem. The basic analogy is to algebra and geometry. There are plenty of reactions to learn. I think we had around 75 to learn and memorize back in the day. The experiments are generally harder and more complex. But basically its chem in 3D. Also most people in chemistry are not very biology oriented. Org. Chem is right next the the linking science of biology and chemistry ... biochem.
What is asked in viva of class 12 CBSE chemistry practical exam?
Depends on the mood of your examiner.If they're in a good mood, they might ask you basic questions like group reagents, salt colours, reaction (brown ring and chromyl chloride important) titration equation, etc. Project related(aim and procedure) Function group reagents and tests, differentiate between different compound (phenol and aniline etc.)If they're even in a better mood, they might ask you easier questions, like how's life, school kaisa hai, khana kaisa hai, gf/bf hai ki nahi etc.If they're feeling lazy, they'll see your face, look towards teacher and wave you off.If they're feeling angry, they'll ask you anything from chemistry, reasons for any godforsaken effect in inorganic etc.If they're feeling like kicking your ass,(partly because their marriage is failing) they'll make you cry, by not asking anything related to practical, and asking difficult question from the far depths of chemistry theory. Even if you answer correct, they'll say they are not satisfied.My examiner was the last type. That godforsaken tardigrade made everyone cry in their viva, although written part and practical went good. He didn't ask one practical related question, all from theory. And by theory, I mean deep theory.I hope his house gets filled by an inexhaustible supply of H2s gas.Harsh, you don't even know.Read the practical book viva questions, and you'll do fine. I read from full marks and comprehensive.
How do I prepare physical chemistry for NEET?
Hi Buddy !!Thanks for A2A !!Physical Chemistry is that part of chemistry that needs numerical practice…!So, now the question is “How to study ?”First is book selection ie firstly you have to get the right books…so for NEET/AIIMS Aspirants..Allen Modules are important..if its not available then go for N.Avasthi and RC Grover..!Study the basics first like say you are studying Thermodynamics understand the concept of law of thermodynamics, its applications and after reading the theory , go to problems section…read the question properly…understand it, highlight the main words..look for what is asked..! Write the datas in your notebook…and then apply the Formula and solve it..!If you get stuck in any question move ahead….go for another then another..then come back to stuck questions revise the theory and do it again don't see the answer instantly start with formula based ones okay !!Say if I give you a question :Illustration 1 :Calculate the amount of work done during expansion of Gas such that the pressure remains constant and volume increases from 2lt to 4lt ?Steps :What is asked ? Work !!Process happening ? Expansion Of Gas !Conditions ? Pressure Constant and Volume is given !Understanding ? Simple concept of work done !Solving : W = p(V1-V2)Got the answer…!Illustration 2 :What is the value of Cp/Cv if 3 moles of a Gas expands under constant heat such that the rise in temperature is 20K and work done during this expansion is 20J ?Steps :What is asked ? Cp/Cv ?Process happening ? Constant heat (Adiabatic Process)dQ = 0 hence dU=dW (first law)dU = nCvdT = 20Hence Cv you will get and then we need Cp think of Cp's relation ie Cp-Cv = RYou will get Cp/CvThese ways you will solve the numericals…Read the question →Think of the concept/formula →Apply →Get selected..!Happy Helping !!